EL7536IYZ

Overview

The EL7536IYZ is a monolithic synchronous step-down switching regulator manufactured by Renesas Electronics Corporation. It integrates internal power FETs and compensation circuitry to deliver a continuous output current of 1 A. The device operates within an input voltage range of 2.5 V to 5.5 V, accommodating standard 3.3 V, 5 V, and Li-ion battery supplies. The adjustable output voltage spans from 800 mV to the input voltage level. It utilizes pulse-width modulation (PWM) control with a typical switching frequency of 1.75 MHz. The component is housed in a 10-lead MSOP package and is rated for operation over an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates synchronous rectification with internal power FETs for high efficiency
• Employs fixed-frequency PWM control mode for stable regulation
• Includes built-in thermal protection and under-voltage lockout mechanisms
• Features internal compensation to minimize external component count

Applications

• Portable test equipment
• Cellular phones and mobile devices
• Li-ion battery powered systems
• Small form factor modules

Procurement Notes

Verify the specific suffix 'T7' for tape-and-reel packaging if required, as the base part number may denote tube packaging. Confirm RoHS compliance status through official datasheets. Check for End-of-Life notifications or Product Change Notifications regarding manufacturing updates. Ensure supply chain availability aligns with project timelines due to potential lifecycle constraints.

Selection Notes

Select this component when a compact solution for 1 A load current is needed within a 5.5 V maximum input limit. The 1.75 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the required output voltage falls within the 800 mV to VIN range. Consider the MSOP-10 footprint constraints during PCB layout design.

Part Context

The EL7536 belongs to the EL753x family of DC-DC converters, which includes variants like the EL7530 (600 mA) and EL7535 (350 mA). This series shares common architectural features such as synchronous buck topology and MSOP packaging. The EL7536 specifically targets applications requiring higher current density than the 350 mA or 600 mA counterparts while maintaining small board space requirements.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate pin-compatible alternatives within the same manufacturer's portfolio only if electrical specifications match exactly.